Free Beer!!!

[TurboK9]

Now that I have your attention...

I think I may have jumped time. 2001 Sport Trac, 4.0L SOHC. Won't start. Good fuel pressure (62 PSI), good spark, all fuses good, MAF and IAC seem good. Turns over find but won't start. Fires intermettently if you prop open the throttle body valve. Eesh.

Have to open up the front of the engine and see if she jumped a tooth or three. It's friggin cold and I'm lazy. Free beer for anyone who wants to check it for me.

Fix it and maybe you can have my unfired brand new Mossberg 500.

It's just too cold. I don't want to do it.

<---- too bad those aren't wrenches he's holding. I'd ask him.

 

[vraiblonde]

I'll check it for you!!


Wait...how much free beer do I get? And do I actually have to offer any constructive advice?

 

[muttdog]

I'll check it for you!!


Wait...how much free beer do I get? And do I actually have to offer any constructive advice?

I may not fix it, but for free beer, Ill check it for you.

 

[TurboK9]

Although ya'all are always welcome to stop by for a beer, the idea was to bribe someone who knew their way around a motor what to look for... so I'll have to cut you two off at a six pack.

 

[Justme2]

psi

Now that I have your attention...

I think I may have jumped time. 2001 Sport Trac, 4.0L SOHC. Won't start. Good fuel pressure (62 PSI), good spark, all fuses good, MAF and IAC seem good. Turns over find but won't start. Fires intermettently if you prop open the throttle body valve. Eesh.

Have to open up the front of the engine and see if she jumped a tooth or three. It's friggin cold and I'm lazy. Free beer for anyone who wants to check it for me.

Fix it and maybe you can have my unfired brand new Mossberg 500.

It's just too cold. I don't want to do it.

<---- too bad those aren't wrenches he's holding. I'd ask him.

:shrug::shrug:62 psi sound high for fuel pressure are you sure it isn't flooded

 

[TurboK9]

:shrug::shrug:62 psi sound high for fuel pressure are you sure it isn't flooded

I knowI I thought the same thing at first, but looked it up and spec is 65 +/- 8. Can you imagine 73 PSI being in spec for a TRUCK? Sheesh. A Lambo maybe...

 

[kcmjweeks]

Try checking the throttle positioning sensor.

 

[Penn]

Do you have a "check engine" light, appearing on your dash? If so, the Engine Control Module might have detected a malfunction, and point you in the right direction to where the problem lies. A number of parts houses will let you rent one. Just an idea.

 

[TurboK9]

Do you have a "check engine" light, appearing on your dash? If so, the Engine Control Module might have detected a malfunction, and point you in the right direction to where the problem lies. A number of parts houses will let you rent one. Just an idea.

The TPS checks out, and I have a code reader... not getting any codes. Whatever is wrong is not triggering a sensor fault, which is why I think I jumped time (the 4.0 SOHC is notorious for the timing chain tensioner/guides) or have a bad crank sensor... but I believe a bad crank sensor woul;d keep the coil pack from firing, and I have spark, sooooo...

 

[Penn]

The TPS checks out, and I have a code reader... not getting any codes. Whatever is wrong is not triggering a sensor fault, which is why I think I jumped time (the 4.0 SOHC is notorious for the timing chain tensioner/guides) or have a bad crank sensor... but I believe a bad crank sensor would keep the coil pack from firing, and I have spark, sooooo...

In the last 4 years that I have been performing OBDII sensor analysis, if you had a bad crankshaft position sensor problem, it would show up on the code reader, just the same as a malfunctioned camshaft sensor would.

When is the last time you changed the fuel filter? Also, check for clogged/ stopped up fuel injector(s), maybe?

 

[TurboK9]

In the last 4 years that I have been performing OBDII sensor analysis, if you had a bad crankshaft position sensor problem, it would show up on the code reader, just the same as a malfunctioned camshaft sensor would.

When is the last time you changed the fuel filter? Also, check for clogged/ stopped up fuel injector(s), maybe?

Fuel filter - never Hehe, I just bought the dang thing a couple weeks ago. haha jokes on me. Anyway, the one on there looks fairly new, but I did pop it off and check for debris / flow. No problems found. The fuel system seems peachy, I can bleed the pressure to 0 and the pump brings it back up to spec almost instantly... and it holds the pressure the way it should, so it isn't having the leaky pump issue....

that's what I figured with the both the cam and crank sensors... The beast ran great, no issues at all until it just up and quit. That fast, no stutter, no struggle, just died. pop, that was it. Though at first a fuse or the coil pack, my very first thoughts... but all checks out.

 

[Penn]

Fuel filter - never Hehe, I just bought the dang thing a couple weeks ago. haha jokes on me. Anyway, the one on there looks fairly new, but I did pop it off and check for debris / flow. No problems found. The fuel system seems peachy, I can bleed the pressure to 0 and the pump brings it back up to spec almost instantly... and it holds the pressure the way it should, so it isn't having the leaky pump issue....

that's what I figured with the both the cam and crank sensors... The beast ran great, no issues at all until it just up and quit. That fast, no stutter, no struggle, just died. pop, that was it. Though at first a fuse or the coil pack, my very first thoughts... but all checks out.

Find anything yet? I just thought of another possibility: The Engine Control Module itself could have up and quit. Commonly known as 'the computer', it normally is situated under the passenger side dashboard, tucked way up there.

If you aren't getting any troublecodes, well maybe the ECM isn't sending any, because it's wasted, ie., not capable of it. Secondly, the ECM totally controls what your engine does, or does not do - like turn over and run properly.

I'm not sure what else could be causing the problem.

 

[TurboK9]

Find anything yet? I just thought of another possibility: The Engine Control Module itself could have up and quit. Commonly known as 'the computer', it normally is situated under the passenger side dashboard, tucked way up there.

If you aren't getting any troublecodes, well maybe the ECM isn't sending any, because it's wasted, ie., not capable of it. Secondly, the ECM totally controls what your engine does, or does not do - like turn over and run properly.

I'm not sure what else could be causing the problem.

Right.. Thought of that. But, my code reader displays that it is 'reading' (a dea ECM or ECC should not display anything at all) and if it's not pulling a good handshake it will display 'connect failed'. Is it possible that the ECC is fried but the data storage side is still operating OK? Is that possible?

Appreciate the effort, by the way!

 

[Penn]

Right.. Thought of that. But, my code reader displays that it is 'reading' (a dea ECM or ECC should not display anything at all) and if it's not pulling a good handshake it will display 'connect failed'. Is it possible that the ECC is fried but the data storage side is still operating OK? Is that possible?

Appreciate the effort, by the way!

Yes, as I understand it, the ECC has 2 storage sides included in the module. When you connect the OBDII reader to the plug in plastic connector, under the dashboard, what is actually being read, is located on the temporary memory side of the device, and that is the one that can be erased. However, those codes are still being kept on the permanent memory portion of the EEC, and that may be causing a failure, in it's ability to properly function.

But now, I have to admit that this is getting a bit farther than I can advise you with, to check out next. I do have a good buddy over at Big Papa's in Lusby, his name is Greg, and he's the owner/operator of the shop. His phone# 410-394-1122.

 

[TurboK9]

Yes, as I understand it, the ECC has 2 storage sides included in the module. When you connect the OBDII reader to the plug in plastic connector, under the dashboard, what is actually being read, is located on the temporary memory side of the device, and that is the one that can be erased. However, those codes are still being kept on the permanent memory portion of the EEC, and that may be causing a failure, in it's ability to properly function.

But now, I have to admit that this is getting a bit farther than I can advise you with, to check out next. I do have a good buddy over at Big Papa's in Lusby, his name is Greg, and he's the owner/operator of the shop. His phone# 410-394-1122.

Thanks maybe I'll call. I don't think I can return the EEC if it doesn't fix it, and I'd hate to drop the money for nothing... I wonder if there is anywhere I can take it to have it checked (the EEC itself, so as to avoid having to tow the beastie).